Fine-gold-saving machine



R, FERGUSSOM FINE GOLD SAVING MACHINE. APPLICATION FILED MAR, 5 i920.

Patented Nov. M, 1922.

2 SHEETS SHEET 1.

INVENTOR Ferguss on v ATTOR v Patentd NOV. 14, 1922.

Z SHEETSSHEET Z.

INVENTOR 9. FerguSSO/l NNWKM RTTORNE Patented, Nov. it, 1922..

ROBERT FERGUSSON, 0

I PORTLAND, OREGON.

FINE GOLDSAV ING MACHINE.

To all whom it may concern:

Belt known that l, Ronnie's FEncUssoN, i1 citizen of the United States, residing at Portland, in the county of l /lultnomah and State oi Oregon, have invented a new and Useful l ine-lhild-hieving Machine, of which the following is-a specification. My 'in\'cntion relates to improvements in fine gold saving machines in. which the gang mass oi gold-hearing detritus is sluiced through an spperatns and in its course subjected to violent agitation, whereby the smallest particles of gold arcprecipitated into various entrspping means. e.

The cat problem among mining men has been the difficulty of recovering the extreme fine gold,-known-as granular, dust, flake and float gold. Especially the latter variety hes, so for, bailled all experts; the dirt (coat which snrrounds it, im )arts sailicient-buoyency'to cause it to be carried ewey with the tailings; and again, if said dirt cost is removed, and the surface skin of the water happens to get hold of float gold, it will infiillihly float away on the surface of the water.

However, I discovered that, once subwill suck almost as qlllCkmerged, fipat gold I 1y as e. nugget; end I further discovered is lat violent agitation, which keeps all of the gangue matter in suspense and in a loosened condition, specific grevity'to precipitate very readily. An effective entre'pping' means, which will then keep. the precipitated metals absolutely out-of the cnrrent,,will then also be the meens ct accomplishing the results which ll'desire, namely the saving of fine gold d other precious metals.

The-objects of my invention are to'fnrnish a machine which will egitate the ga ngue mass so violently that every dirt coat is effectively removed and the clean gold positively submerged, whereby precipitation is instently achieved.

Another object is which will accomplish einelgemetion out perceptible loss of mercury.

A further object is to eliminate the dis- I advantages inherent mechines i the into furnish a. machine Withapparatus extracts in .iscrinoii census the .metals oi greater- 7 Application filed March 5, 1920. $811511 No.3363fi26.

clined' type by. keeping a. majority of the Working parts of my machine on a. level or nearly so and rather increasing instead the length of construction Within reasonable proportions.

Other objects of my invention/ere to i); found in the CODSlZl'llGtlOl'f and con'ibiniz of the. vario after. i

I attain these objects with the niec illustrated in the accompanying drew in which s Fig. I is a, plan "View of the entire eppe-- retus.

' Fig. H is a longitudinal section through Fig. Ialong the line aa.

Fig. 111- is at section through Fig. "i the line 5- 1), and shown on s. somew larger scale.

Fig. 1V is a section through the line 0'-'-L', also one somewhat scale.

Fig. V is a sectionthrough Fig. the line (l-d.

Itgig. V1 is an isometric view of the'shslier ta e.

ll; elong enlarged.

Similar numerals refer to throughout the severel It may be stated 1 6 ie out t. thnt m preclons metals, such platinum; um, osmium, iridium, ri'lthenium tained in gold-hearing sands, and 2.. following description includes these although gold only 'ney he specie mentioned. I

Referiing now to we c th sluicewey 1 l "which delivers- "the s... :c

.jgangue matter into the box .3. An inclined.

metal screen 3 Within the box. separates he liner material from the coarser gravel,

delivers the letter into the chute e fine materiel drops through the meshes of the screen 3, lands first on the inclined metal plate 5, endslidesfroin there to the inclined. bottom 6 of the box 2. S02E18 of the gold will be retained right here by' the crescent stop '3' {see else-Fig. HI). Whetever siicceeds'in crossing the stop tells e sindl-conveyoi sheped hoist} whish 4. In a fine gold machine, a sepaand the posket, i rater cnmprising open vertical b0 ;x gar'anri gate valves in 611% bu taional means 0f sepameiun i-vi shin in box, in tbs bottem of if :1 caveye d horizonmi cnnveyor-fimugh suing; Signed by 5 from side of the 007 near tns mom, 27th day 0f Februar seim-cylu'lcincai packet underneam the zmougi'l, agitating means within tl'w iu ough 

